TOOLBOX of criteria deemed consensual for the various health science fields examined, while taking into account the diversity of the characteristics of each criterion according to these fields.

Comparaison of this TOOLBOX with the guidelines proposed by Spencer et al. (2003) and Pope and Mays (2006) : interesting similarities, that constitute a first basis for agreement between expert users and peer users regarding the essential criteria to evaluate qualitative research in the health science field. (ComparisonThreeGuidelines).Results Phase IV